Add save+open to notebook, allow multiple windows, add translations, add welcome window
diff --git a/ide/icons/book.svg b/ide/icons/book.svg
new file mode 100644
index 0000000..24d24e2
--- /dev/null
+++ b/ide/icons/book.svg
@@ -0,0 +1,3 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M18.125 1.875C15.484 1.88633 13.5207 2.25 12.1 2.87852C11.0398 3.34727 10.625 3.70195 10.625 4.90352V17.5C12.2488 16.0352 13.6898 15.625 19.375 15.625V1.875H18.125ZM1.875 1.875C4.51602 1.88633 6.4793 2.25 7.9 2.87852C8.96016 3.34727 9.375 3.70195 9.375 4.90352V17.5C7.75117 16.0352 6.31016 15.625 0.625 15.625V1.875H1.875Z" fill="#C8C8C8"/>
+</svg>
diff --git a/ide/icons/document.svg b/ide/icons/document.svg
new file mode 100644
index 0000000..918c5ad
--- /dev/null
+++ b/ide/icons/document.svg
@@ -0,0 +1,4 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M9.375 8.4375V1.25H3.59375C3.46943 1.25 3.3502 1.29939 3.26229 1.38729C3.17439 1.4752 3.125 1.59443 3.125 1.71875V18.2812C3.125 18.4056 3.17439 18.5248 3.26229 18.6127C3.3502 18.7006 3.46943 18.75 3.59375 18.75H16.4062C16.5306 18.75 16.6498 18.7006 16.7377 18.6127C16.8256 18.5248 16.875 18.4056 16.875 18.2812V8.75H9.6875C9.60462 8.75 9.52513 8.71708 9.46653 8.65847C9.40792 8.59987 9.375 8.52038 9.375 8.4375Z" fill="#C8C8C8"/>
+<path d="M10.625 1.62852V7.34375C10.625 7.38519 10.6415 7.42493 10.6708 7.45423C10.7001 7.48354 10.7398 7.5 10.7813 7.5H16.4965C16.5119 7.50001 16.527 7.49545 16.5399 7.48689C16.5527 7.47833 16.5627 7.46616 16.5687 7.45191C16.5746 7.43766 16.5762 7.42197 16.5732 7.40682C16.5702 7.39167 16.5629 7.37774 16.552 7.3668L10.7582 1.57305C10.7473 1.56217 10.7333 1.55477 10.7182 1.5518C10.703 1.54882 10.6873 1.5504 10.6731 1.55633C10.6588 1.56227 10.6467 1.57229 10.6381 1.58514C10.6295 1.59799 10.625 1.61308 10.625 1.62852V1.62852Z" fill="#C8C8C8"/>
+</svg>
